Dear Deal.II community,
I am currently fixing an orientation issue for some (non-primitive) vector
elements with the help of two other Deal.II developers/maintainers.
I have a quick question: On complicated meshes some faces can have a
non-standard orientation or they can be rotated against the
Dear Wolfgang,
> Fundamentally, the place to look is to search through the finite element
> classes where they ask for face and line orientations. It is possible that
> you
> don't actually have to do much there: Finite element classes generally
> work in
> the local (cell) coordinate syst
Dear Budhyant,,
Hard, to say what should be the paths on your system. Dealing with all
these large dependencies can be quite cumbersome. I would say the way you
install Deal.II depends on what you want to do with it. Let me tell you how
I would approach this.
1. If you just want to develop a
d see
DEAL_II_WITH_THREADS set up with external dependencies
in the file detailed.log in the build directory. Then try to compile again.
Best
Simon
On Saturday, March 6, 2021 at 12:19:22 PM UTC+1 hank...@gmail.com wrote:
> Dear all,
>
> First of all, I'm really sorry if the similar erro
Hi,
You don't need to change compiler. You just need to enable Umfpack when you
install dealii. In your dealii build directory call:
cmake -DDEAL_II_WITH_UMFPACK = ON ..
make
make install
Best,
Simon
On Sunday, March 7, 2021 at 11:14:09 AM UTC+1 hank...@gmail.com wrote:
> Dear Drs. S
APACK).
Best,
Simon
On Monday, March 8, 2021 at 2:15:57 AM UTC+1 hank...@gmail.com wrote:
> Dear Simon,
>
> Thank you for your help again.
>
> I tried your suggestion, but the following error message appears...
>
> -- This is CMake 3.10.2
> --
> -- Include
> /home/
Hi,
Can you try this:
cmake -DDEAL_II_WITH_HDF5=ON
-DHDF5_DIR=/usr/lib/x86_64-linux-gnu/hdf5/serial ..
Because, as far as I can tell, the "hint" that is currently in
configure_hdf5.cmake isn't good enough.
Best,
Simon
On Sunday, March 21, 2021 at 6:50:56 PM UTC+1 Curro Trigo
,
point,
value);
Best,
Simon
On 20/07/2023 12:54, 'Jost Arndt' via deal.II User Group wrote:
Dear everyone,
I have trouble understanding in how to evaluate a solution at a given point
correctly.
Described in Step-3 for example the function point_value
Hi.
From your attached files it looks like you have saved the matrix and rhs with
quite few digits. Do you get the same result if you increase the number of
digits you write to your std::ofstream object?
Compare:
https://en.cppreference.com/w/cpp/io/manip/setprecision
Best,
Simon
On 29/07
instead. In my case, aborting the program is absolutely not necessary
as I would have a workaround.
But, if I understand you, there is no way for me to catch the exception
from my question, right?
Best
Simon
Wolfgang Bangerth schrieb am So., 30. Juli 2023,
18:33:
>
> Simon,
>
> &
e catch block.
Does that make sense?
Or do you see a better solution, like checking
cell->status() right after GridTools::find_active_cell_around_point?
Best,
Simon
Am Mi., 2. Aug. 2023 um 18:51 Uhr schrieb Wolfgang Bangerth <
bange...@colostate.edu>:
> On 7/30/23 11:20, Simon Wi
ii::ExceptionBase exception &).
Given that, in my opinion "disable_abort_on_exception()"
should cause any undue behavior.
Best,
Simon
Am Do., 3. Aug. 2023 um 14:21 Uhr schrieb Wolfgang Bangerth <
bange...@colostate.edu>:
> On 8/2/23 15:58, Simon Wiesheier wrote:
> >
> &
t arbitrary points.
What other "nonmatching" facilities do you think may be helpful?
As said, I have to evaluate the interpoland (first and second derivatives)
at arbitrary points in real space --
as often as there are quadrature points on my geometry in each assembly.
Best,
Simon
A
actually be faster to generate the quadrature in real space and then
transform the quadrature to reference space before passing it to FEValues. If you
want to do this the functions cell->bounding_box() and
BoundingBox::real_to_unit(..) are useful.
Best,
Simon
On 03/08/2023 23:11, Anton wr
iosity (and if it is not a research secret), what is your use
case? Why do you need to generate many quadratures for the same cell?
Best,
Simon
On 04/08/2023 12:39, Anton Evgrafov wrote:
Dear Simon,
Thank you very much for your reply. The wrapper code looks
embarrassingly simple!
If you ar
Hi.
The function
GridIn::read_msh
uses the Gmsh-api internally to read a mesh from file. However, Gmsh is
distributed under GPL and not LGPL.
Does this mean that one can not use this function if one wants to use
deal.II under LGPL?
Best,
Simon
--
The deal.II project is located at http
Thank you for the fix!
I have to stick to deal.ii 9.4.0 for a while which I installed via spack.
Is there anything I can add to my user code or do I have to recompile the
library with your changes?
Best
Simon
Wolfgang Bangerth schrieb am Di., 31. Okt. 2023,
20:17:
>
> &g
Dear Luca,
the program I provided writes the volume mesh as well as the surface mesh
to vtk files.
If you compare these files, for instance in paraview, you will see that the
locally refined cells are not extracted.
Best,
Simon
Am Di., 5. Dez. 2023 um 21:14 Uhr schrieb Luca Heltai :
> D
ridGenerator::flatten_triangulation<2, 3, 2>(...)
does not work in the presence of hanging nodes.
Any workarounds for this issue?
Best,
Simon
Am Di., 5. Dez. 2023 um 21:48 Uhr schrieb Luca Heltai :
> By the way:
>
> Sorry if my reply was not too precise at the beginning, and if it soun
, I decided to loop manually over the rows I am
interested in.
In a serial program, that worked smoothly. But if I get the gist of your
message, vmult and extracting the relevant elements is the only way to do
this in parallel, right?
Thank you,
Simon
Wolfgang Bangerth schrieb am Fr., 29. Dez. 2023
s not been prioritized.
Best,
Simon
On Thursday, May 2, 2024 at 12:40:00 AM UTC+2 matthias...@epfl.ch wrote:
> Dear all,
>
> *Background :* I am currently trying to implement a diffuse domain
> formulation to solve the poisson equation whilst penalizing the jumps in
> gradient
been prioritized.
Best,
Simon
On 01/05/2024 23:39, 'Matthias Nicola Henssler' via deal.II User Group wrote:
Dear all,
*Background :* I am currently trying to implement a diffuse domain formulation
to solve the poisson equation whilst penalizing the jumps in gradient in very
similar w
been prioritized.
Best,
Simon
On 01/05/2024 23:39, 'Matthias Nicola Henssler' via deal.II User Group wrote:
Dear all,
*Background :* I am currently trying to implement a diffuse domain formulation
to solve the poisson equation whilst penalizing the jumps in gradient in very
similar w
PDE is more accurate. The price is that the
implementation is much more complicated.
Best,
Simon
On Sunday, July 14, 2024 at 4:00:04 AM UTC+2 sk.bi...@gmail.com wrote:
> Hi,
>
> Step-85 shows example of CutFEM for Poisson's equation. Is there a similar
> tutorial for solving linear
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